Terminology of The Properties

1. Thickness

Overall Thickness of the Tape

The values indicate the overall thickness (total thickness of the substrate and adhesive) of the adhesive tape.

2. Adhesive Strength

Adhesive Strength of the Tape

This is the strength rired to peel off an adhesive tape applied firmly to a test plate, such as a stainless steel plate, and larger values indicate stronger adhesion

• Test plates are made of stainless steel unless otherwise specified.
• There are 90° and 180°peeling angles, but measurements refer to 180°peeling unless otherwise specified.

3. Overlap Adhesive Strength

Adhesive Strength of the Overlapping Tape

The reverse side of the tape is used as the test plate. Larger values indicate stronger adhesion to the reverse side of the tape itself.

4. Holding Strength

Resistance of the Adhesive when a Static Load is Applied

The displacement of the tape is measured by applying the adhesive tape firmly to a stainless steel plate held vertically, and subjecting it to a static load for 30 minutes. Smaller values indicate less displacement or better resistance to repulsive force.

5. Unwinding Force

Force Rired to Unwind the Tape

This is the force rired to unwind the tape, and there are two different tests: low speed and high speed unwinding. Smaller values indicate less unwinding force rired, for easier tape feeding.

• Measurements are made at 30m/min (high speed unwinding), which is close to actual working conditions.

6. Tensile Strength

Longitudinal Strength of the Tape

Measurements are made by stretching the adhesive tape longitudinally until breaking. Larger values indicate a stronger substrate.

7. Elongation

Longitudinal Stretch Rate of the Tape

The tape is stretched as with tensile strength, and the stretched length is shown as a percentage. Smaller values indicate less elongation.

8. SI Unit

Currently, there are a few different units in the metric system. To avoid confusion, a consistent SI unit able to be utilized by both the general public and experts is adopted.

Statutory measurement unit	SI unit
Phon	Decibel[dB]
Kilogram force[kgf]	Newton[N]
Calorie[cal]	Joule[J]